Home / 202,269.12-279,156.24-121,738.56

Finding the Fourth Proportional to 202,269.12, 279,156.24 and 121,738.56

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Solution

The fourth proportional to 202,269.12, 279,156.24 and 121,738.56 is: 168,014.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,269.12 : 279,156.24 = 121,738.56 : x
  2. Step 2: Convert to fraction form
    202,269.12/279,156.24 = 121,738.56/x
  3. Step 3: Cross multiply
    202,269.12x = 279,156.24 × 121,738.56
  4. Step 4: Simplify right side
    202,269.12x = 33,984,078,672.61
  5. Step 5: Solve for x
    x = 33,984,078,672.61/202,269.12
  6. Step 6: Final answer
    x = 168,014.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.